AirLink RV55 Hardware User Guide
Rev. 1 June 2019
22
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USB Port
Warning:
Do not use the USB port in a potentially explosive environment.
The USB port complies with USB Version 2.0 for high speed operation and can be
configured to operate in one of two modes:
•
Virtual Ethernet Port
: The RV55 behaves as if the PC were connected to an
Ethernet port, allowing access to the Internet and the router’s internal web server.
This is the default setting.
•
Virtual Serial Port
: The RV55
behaves as if it was connected to a standard serial
port. The primary use of this interface is for the AT command line interface of ALEOS
and for diagnostic access to the radio module.
A Windows driver must be installed on the PC in order to support USB virtual serial port
mode. You can download the drivers from
source.sierrawireless.com/resources/airlink/software_downloads/airlink_usb_driver/
For information about setting the USB mode and installing the USB driver, see the ALEOS
Software Configuration User Guide.
Sierra Wireless recommends you:
•
Use a USB 2.0 cable
•
Connect directly to your computer for best throughput.
Ethernet Port
•
IEEE 802.3 Ethernet specification for 1000 Mbps speed (Gigabit Ethernet) with
fallback to 100 or 10 Mbps (Cat 5e or Cat 6 cable is required for Gigabit Ethernet)
•
Auto-crossover support
•
Auto-negotiation detects the speed of the connecting device for 1000 baseT,
100 baseT, or 10 baseT
Serial Port
The RV55 9-pin serial port connects directly to most computers or other devices with a
standard serial straight-through cable.
Note: If you have a DCE device, you need to use a null modem (cross-over) cable.
The same serial port can be configured as a dual 4-wire serial port, and connect to
devices with a Y cable (Sierra Wireless part number 6001238). The Dual Port Mode
setting is available in ACEmanager under Serial > RS232 Configuration > General.
•
Used for connecting serial devices and configuration
•
Complies with the EIA RS-232D specification for DCE equipment
•
Output driver levels swing from -7 VDC to +7 VDC with normal loading